"I picked the lesser of two evils in that case," she said. "I don't support Obama because I really don't like his health care plan. It's so frustrating."
Republican incumbent Tony Bennett, who incurred teachers' wrath by pushing conservative education policies such as linking their pay to students' test scores, conceded defeat to Democrat Glenda Ritz in the race for the state's top education post.
"I have no regrets," Bennett said, while acknowledging that some of his policies had been unpopular.
Voting was heavy across the state, but Valerie Kroeger, a spokeswoman for the Indiana secretary of state's office, said it went smoothly in most places.
There were a few wrinkles, however. A bank robbery and shootout in Muncie made it difficult for voters to get to one polling site, and election officials in Bloomington said a misleading email caused confusion over where Indiana University students were supposed to vote.
Significant voting delays were reported in heavily Republican Hamilton County just north of Indianapolis, where voters were still standing in line at some sites an hour after the deadline for polls to close passed.
A technical glitch delayed the start of voting by about 20 minutes at some sites in the suburban county, but Hamilton County Election Administrator Kathy Richardson blamed long lines on turnout fed by keen interest in the presidential election and a local referendum on whether Fishers should remain a town or become a city.
Associated Press writers Charles Wilson, Ken Kusmer and Tom Murphy in Indianapolis and Tom Coyne in Mishawaka contributed to this report.